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Determine the types of measurement scales for each variable (Nominal, Ordinal, Interval, and/or Ratio). Some variables can be more than one type.
You may calculate the correlation coefficient, if appropriate to the issue you are exploring.
Identify the independent, dependent, and control variables? Use words that connect the variables?
You are to conduct a sample survey to determine the mean family income in a rural area of central Florida.
What would you recommend as the lower limit of the first class 40? Organize the data into a frequency distribution?
What is the proper format for stating the null hypothesis? Which is the correct statement of the null hypothesis?
To make the greatest number of strawberry-banana shakes possible , how many bananas and how many strawberries should Mr. Singh use for each shake?
Is there evidence to suggest a difference in the mean waiting times at the four body shops? Use the .05 significance level.
The data from 1858-1994 is plotted on the graph below, using the location in 1994 as the 0 km point.
What is the middle? If we have student scores of 4.0, 3.7, 3.7, 3.7, 1.0 the average would be 3.2 while the median and the mode would both be 3.7.
The following table gives participation in selected sports activities in 1998, in thousands, for persons living in the U.S. age 7 or older.
Plot the graph of: y = x^2 - 2x - 4 for values of x from x = -2 to x = 4 at intervals of 1 and use the graph to solve the quadratic equation x^2 - 2x - 4 = 0.
At the 0.05 level of significance, is there evidence that the mean number of ad pages was higher in May 2008 than in May 2009?
The project of building a backyard swimming pool consists of eight major activities and has to be completed within 19 weeks.
Dan must sell 3 diamond rings this week to meet his quota. He is meeting up with 5 possible customers, each who wants a different ring.
In how many ways can the awards alternate between men and women with the first award being presented to a woman?
A firm is engaged in the production of three types of products A, B, and C. The products earn profit of $3, $5 and $4 per unit respectively.
An anthropologist discovers an isolated tribe who has written an alphabet that contains only six letters (call the letters A, B, C, D, E, and F).
Find the number of different selections of three letters which can be made from the letters of the word PARALLELOGRAM.
A set of 10 flags, 5 red, 3 blue and 2 yellow are to be arranged in a line along a balcony. If flags of the same colour are INDISTINGUISHABLE.
On opening day, after the head of the school had closed all the lockers, a student walked by and opened every single one.
The coach of the Morton Valley Softball Team has 6 good hitters and 8 poor hitters. He chooses 3 hitters at random.
Five cards are chosen from an ordinary deck to form a hand in poker. In how many ways is it possible to get the following results?
In how many distinguishable ways can the books be arranged if books of the same color are identical but need not be grouped together?
How many positive integers less than 1,000 are a) divisible by 7, b) are divisible by both 7 and 11 c) have distinct digits.